package com.taobao.taokeeper.monitor.web;

import static common.toolkit.java.constant.EmptyObjectConstant.EMPTY_STRING;
import static common.toolkit.java.constant.SymbolConstant.COLON;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

import com.taobao.taokeeper.common.GlobalInstance;
import com.taobao.taokeeper.model.ZooKeeperCluster;
import common.toolkit.java.entity.HostPerformanceEntity;
import common.toolkit.java.exception.DaoException;
import common.toolkit.java.util.StringUtil;
import common.toolkit.java.util.io.ServletUtil;

/**
 * @author yinshi.nc@taobao.com
 * @since 2011-08-10
 */
@Controller
@RequestMapping("/hostPerformance.do")
public class HostPerformanceController extends BaseController {

    @RequestMapping(params = "method=showHostPerformancePAGE")
    public ModelAndView showSystemPerformancePAGE(HttpServletRequest request, HttpServletResponse response, String clusterId) {

        clusterId = StringUtil.defaultIfBlank(clusterId, 1 + EMPTY_STRING);

        try {
            Map<Integer, ZooKeeperCluster> zooKeeperClusterMap = GlobalInstance.getAllZooKeeperCluster();
            ZooKeeperCluster zooKeeperCluster = GlobalInstance.getZooKeeperClusterByClusterId(Integer.parseInt(clusterId));
            Map<String, HostPerformanceEntity> hostPerformanceEntityMap = new HashMap<String, HostPerformanceEntity>();
            if (null == zooKeeperCluster) {
                zooKeeperCluster = zooKeeperClusterDAO.getZooKeeperClusterByCulsterId(Integer.parseInt(clusterId));
            }
            if (null == zooKeeperCluster) {
                ServletUtil.writeToResponse(response, "目前还没有这样的ZK集群<a href='zooKeeper.do?method=zooKeeperRegisterPAGE'><font color='red'> 加入监控</font></a>");
                return null;
            }


            //进行系统数据采集
            List<String> serverList = zooKeeperCluster.getServerList();
            if (null != serverList) {
                for (String server : serverList) {
                    String ip = StringUtil.trimToEmpty(server.split(COLON)[0]);
                    hostPerformanceEntityMap.put(ip, GlobalInstance.getHostPerformanceEntity(ip));
                }
            }

            Map<String, Object> model = new HashMap<String, Object>();
            model.put("hostPerformanceEntityMap", hostPerformanceEntityMap);
            model.put("zooKeeperClusterMap", zooKeeperClusterMap);
            model.put("description", zooKeeperCluster.getDescription());
            model.put("clusterId", zooKeeperCluster.getClusterId());
            model.put("timeOfUpdateHostPerformanceSet", GlobalInstance.timeOfUpdateHostPerformanceSet);
            return new ModelAndView("monitor/showHostPerformancePAGE", model);
        } catch (NumberFormatException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (DaoException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        return null;

    }

}
